Open-plan kitchen, diner and living conversions in Deptford. Trusted, professional, 30+ years' hands-on experience.
GS Renovation creates open-plan spaces throughout Deptford, from knock-throughs in Georgian reception rooms to kitchen-diners in the SE8 warehouse conversions near the Creek. With more than 30 years across the Lewisham area, we open these period homes up with properly sized steel and considered detailing, keeping the character while gaining the light and flow.

Deptford's Georgian and Regency townhouses were built as a series of separate rooms, so opening them up means removing structure, not just a stud partition. A knock-through between the two receptions, or a rear kitchen-diner, usually crosses a load-bearing spine wall, which is why a structural engineer sizes the steel to carry the floors above before we touch anything.
Not every Deptford homeowner wants a single vast room. In these characterful SE8 houses a broken-plan layout often works better, keeping a sense of separate zones with a wide supported opening, a half-height wall or a Crittall-style glazed divider. The engineer designs the steel and the finishes together so the new space feels intentional rather than simply gutted.
The beam that makes an open-plan room possible bears onto padstones at each end and is propped while the wall below is removed in careful stages. In a tall Deptford terrace the loads coming down through the house are significant, so the engineer's calculations decide the section rather than a rule of thumb, and the bearings are detailed to spread the load into sound masonry.
Opening up a load-bearing wall is notifiable under the Building Regulations, so Lewisham building control inspects and signs off the finished work. Where the steel bears into the shared party wall with the neighbouring house, the Party Wall Act applies and you serve notice first. We dust-protect the home, work cleanly around the family, and hand over a certified, plastered space.
Deptford clients choose GS Renovation because an open-plan conversion is a structural project that needs one accountable team. We bring the engineer's design and Lewisham building control together, size and seat the steel correctly, and finish neatly in an occupied period home. More than 30 years in SE8 means the result is open, certified and built to last.
George was brilliant. Lovely bloke, very reasonably priced and a perfectionist to boot. He completed our small kitchen renovation with care and great…
George was a great find. The job required re-plastering the walls before fitting acrylic panels. He also re-plumbed the shower waste under the solid…
Saiid did a complete refurbishment of our small bathroom. This involved ripping out the existing bath/shower, basin, toilet, pipework, and tiles and…
FAQ
There is no going rate worth quoting, because scope varies more than the market does. A simple open-plan conversion job near SE8 and a complicated one elsewhere in Deptford are different pieces of work. GS Renovation surveys and prices each on its merits, with the Lewisham Council element shown separately. Ring 07472 424 226 for an honest steer on your period, Georgian and listed property, or email info@gsrenovationltd.co.uk with the SE8 address and we will book a free survey. As a rough guide, open-plan conversion in London typically costs from roughly £3,000 to £8,000 or more, including the steel beam and finishing (indicative London ranges, MyBuilder and Checkatrade, 2026). Your figure depends on the size, specification and condition of the property, which is why we survey before quoting.
Allow for the structural stage, the following trades and the making good as three separate blocks. On an open-plan conversion project at an SE8 address the first is usually shorter than Deptford homeowners expect and the last longer, particularly in period, Georgian and listed housing. GS Renovation gives you the week by week programme with the quotation. The Lewisham Council inspections are marked on it in advance. Email info@gsrenovationltd.co.uk and we will send a sample Lewisham programme before the SE8 survey.
Yes, fully insured, and we will show you the certificate before work starts. GS Renovation carries cover for every open-plan conversion project, whether the property is in Deptford or over in Catford, and we are GS Renovation Ltd, company number 14611254. You can check that independently. Ask any contractor quoting for your SE8 home to evidence the same. Email info@gsrenovationltd.co.uk and we will send ours for Lewisham work. The certificate is offered before any SE8 work starts.
Building regulations, principally structure. The beam is sized by an engineer and inspected by Lewisham Council before it is concealed. Fire separation also matters where the Deptford conversion opens a stairwell, because escape routes must stay protected under Part B.
Only where planning designations apply, and internal work is often unaffected. Open-plan conversion in a listed Deptford building needs listed building consent as well as Lewisham Council approval, and unauthorised work is a criminal offence. GS Renovation leads that application for an SE8 property. We confirm the designation before anyone spends money on drawings in Lewisham. Ask on 07472 424 226 which consents open-plan conversion actually needs at an SE8 property in Deptford in the first place.
Usually yes, because the dividing wall is internal. Removing it is controlled under the Building Regulations and signed off by Lewisham building control, not planning. Planning or listed-building consent only comes in if your Deptford home is listed or the work touches the exterior in a conservation area. We confirm what your specific property needs before starting.
Yes, from any part of Deptford and the SE8 area, and from the surrounding Lewisham too. GS Renovation quotes open-plan conversion free of charge with no obligation, whether the property is at SE8 or over towards Catford. If we are not the right firm we will tell you rather than quote and hope. Ring 07472 424 226 and we will book a survey. Small jobs are as welcome as large ones. Building control is coordinated where the work requires it.
Every Service, One Team
The same trusted team, 30+ years' hands-on experience and free, no-obligation quotes apply to every GS Renovation service in Deptford. Explore what else we do locally:
Same Service, Nearby Areas
We carry out open-plan conversion across Deptford and the surrounding areas. Explore a nearby location:
Free, no-obligation quote for open-plan conversion in Deptford. Rated 4.9 from 31 reviews on MyBuilder, fully insured, and building control handled for you.